Jack Black was on "Jimmy Kimmel Live" last night, appearing in his full-on Eddie Riggs costume (last seen at the VMAs). Oddly he was playing Jack Black, channeling Eddie Riggs, and he remained in character for the duration, participating in demon-slaying skits with fake audience members.

It's a pretty entertaining watch, and it's all online for your enjoyment. The first clip can be found here, but the full interview is also available online.